Let’s be real—when you first hear the premise of Welcome to Demon School! Iruma-kun, it sounds like a setup for a one-hit-wonder gag anime. A completely spineless kid gets sold to a demon by his awful parents, only to find out the demon just wants to spoil him like a grandson. It’s funny, sure. But how do you stretch that into four incredibly successful seasons?

​The answer is simple: unparalleled character development and world-building that sneaks up on you.

​Here at Senpaidailybd, we constantly see people asking for an anime that balances pure, chaotic comedy with genuine, hype-inducing shonen action. Iruma-kun is exactly that show. If you’re wondering whether it’s worth the binge, or if you just need a refresher on what makes each season tick before jumping back in, we’ve got you covered. Here is exactly what you need to know about the evolution of the Misfit Class.

​Season 1: The Ultimate Survival Guide

​Episode Count: 23

The Vibe: Pure chaotic comedy and slice-of-life goodness.

​Season 1 is all about setting the stage. Iruma Suzuki’s primary goal is completely understandable: do not stand out, and do not get eaten. Because of his background dodging his parents' life-threatening demands, he essentially has a maxed-out evasion stat. This accidentally leads him to defeat the school valedictorian, Alice Asmodeus, who instantly becomes his fiercely loyal best friend.

​This season shines because it plays with the "overpowered protagonist" trope. Iruma isn't strong; he’s just insanely lucky and too nice for his own good. The introduction of Clara Valac, the hyperactive wildcard, solidifies the core trio. It’s lighthearted, hilarious, and the perfect palette cleanser if you’ve been watching too many dark, heavy shows.

​Season 2: Walter Park and the "Evil Cycle"

​Episode Count: 21

The Vibe: The stakes get real, and Iruma gets cool.

​If Season 1 hooked you with its charm, Season 2 is where the show grabs you and refuses to let go. The training wheels come off. The demons actually start acting like demons, and we get the Walter Park arc—a massive, multi-episode battle that proves this show knows how to do action sequences.

​But let’s talk about the real reason Season 2 broke the internet: "Irumean." Through a magical ring mishap, Iruma enters his "Evil Cycle," temporarily shifting from a soft-spoken pushover into a confident, assertive, and undeniably badass leader. Watching him rally the Misfit Class to take over the legendary Royal One classroom is easily one of the most satisfying arcs in modern anime.

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​Season 3: Welcome to the Jungle

​Episode Count: 21

The Vibe: Pure Shonen tournament arc energy.

​Forget the classroom. Season 3 throws the Misfit Class into the Harvest Festival, a brutal survival exam where the students are dropped into a demonic jungle to hunt for ingredients and survive against each other.

​The best part of this season? The supporting cast finally gets the spotlight. The Misfit Class is split up and assigned specific, terrifying mentors to train them. We get to see exactly why these kids were put in the abnormal class to begin with. The character growth here is phenomenal, proving that Iruma-kun is far more than just a comedy. It’s a masterclass in giving every single side character a meaningful arc.

​Season 4: The Music Festival (Airing Now in 2026!)

​Episode Count: Currently Airing (TBA)

The Vibe: High-stakes teamwork and proving the haters wrong.

​As of April 2026, the highly anticipated Season 4 is officially airing, and the hype is completely justified. The Misfit Class has an impossible task: they must all reach Daleth (Rank 4), or they lose their prestigious Royal One classroom. The only way to pull this off? Winning the school's massive Music Festival.

​This season shifts the focus from individual survival to absolute teamwork. It’s putting everything the Misfits have learned over the last three seasons to the ultimate test. If you are not caught up yet, now is the absolute best time to start bingeing.

​The Verdict

​Welcome to Demon School! Iruma-kun is the definition of a hidden gem that turned into a powerhouse. It doesn’t rely on cheap fan service or overly edgy plots; it wins you over with sheer heart, phenomenal pacing, and a cast you can’t help but root for. Drop your generic isekai for a weekend and start this series—you won't regret it.